diff --git a/build_avopt b/build_avopt
new file mode 100755
index 0000000000..fc5d66d2f8
--- /dev/null
+++ b/build_avopt
@@ -0,0 +1,10 @@
+#!/bin/sh
+sed 's/unsigned//g' |\
+ sed 's/enum//g' |\
+ egrep '^ *(int|float|double|AVRational|char *\*) *[a-zA-Z_0-9]* *;' |\
+ sed 's/^ *\([^ ]*\)[ *]*\([^;]*\);.*$/{"\2", NULL, OFFSET(\2), FF_OPT_TYPE_\U\1, DEFAULT, \1_MIN, \1_MAX},/' |\
+ sed 's/AVRATIONAL_M/INT_M/g'|\
+ sed 's/TYPE_AVRATIONAL/TYPE_RATIONAL/g'|\
+ sed 's/FLOAT_M/FLT_M/g'|\
+ sed 's/FF_OPT_TYPE_CHAR/FF_OPT_TYPE_STRING/g'
+ 
\ No newline at end of file